v2.1.0: Use Cases Overview & Auto Permalinks

What's Changed

• feat: redesign-usecaes-overview by @wesleyboar in #46
• Adding changes to Pedro Arduino use case by @parduino in #47
• docs: how and why to test (#38) by @wesleyboar in #49
• docs(README): known issue testing on docker by @wesleyboar in #52
• fix: missing heading underline in card on hover by @wesleyboar in #59
• fix: gh-56 heading permalinks & anchors by @wesleyboar in #60

Full Changelog: v2.0.0...v2.1.0